wgpu_hal/dynamic/
instance.rs

1use alloc::{boxed::Box, vec::Vec};
2
3use crate::{Api, Capabilities, ExposedAdapter, Instance, InstanceError};
4
5use super::{DynAdapter, DynResource, DynResourceExt as _, DynSurface};
6
7pub struct DynExposedAdapter {
8    pub adapter: Box<dyn DynAdapter>,
9    pub info: wgt::AdapterInfo,
10    pub features: wgt::Features,
11    pub capabilities: Capabilities,
12}
13
14impl DynExposedAdapter {
15    /// Returns the backend this adapter is using.
16    pub fn backend(&self) -> wgt::Backend {
17        self.info.backend
18    }
19}
20
21impl<A: Api> From<ExposedAdapter<A>> for DynExposedAdapter {
22    fn from(exposed_adapter: ExposedAdapter<A>) -> Self {
23        Self {
24            adapter: Box::new(exposed_adapter.adapter),
25            info: exposed_adapter.info,
26            features: exposed_adapter.features,
27            capabilities: exposed_adapter.capabilities,
28        }
29    }
30}
31
32pub trait DynInstance: DynResource {
33    unsafe fn create_surface(
34        &self,
35        display_handle: raw_window_handle::RawDisplayHandle,
36        window_handle: raw_window_handle::RawWindowHandle,
37    ) -> Result<Box<dyn DynSurface>, InstanceError>;
38
39    unsafe fn enumerate_adapters(
40        &self,
41        surface_hint: Option<&dyn DynSurface>,
42    ) -> Vec<DynExposedAdapter>;
43}
44
45impl<I: Instance + DynResource> DynInstance for I {
46    unsafe fn create_surface(
47        &self,
48        display_handle: raw_window_handle::RawDisplayHandle,
49        window_handle: raw_window_handle::RawWindowHandle,
50    ) -> Result<Box<dyn DynSurface>, InstanceError> {
51        unsafe { I::create_surface(self, display_handle, window_handle) }
52            .map(|surface| -> Box<dyn DynSurface> { Box::new(surface) })
53    }
54
55    unsafe fn enumerate_adapters(
56        &self,
57        surface_hint: Option<&dyn DynSurface>,
58    ) -> Vec<DynExposedAdapter> {
59        let surface_hint = surface_hint.map(|s| s.expect_downcast_ref());
60        unsafe { I::enumerate_adapters(self, surface_hint) }
61            .into_iter()
62            .map(|exposed| DynExposedAdapter {
63                adapter: Box::new(exposed.adapter),
64                info: exposed.info,
65                features: exposed.features,
66                capabilities: exposed.capabilities,
67            })
68            .collect()
69    }
70}
wgpu_hal/dynamic/instance.rs

wgpu_hal/dynamic/
instance.rs
